Essentra Components Cable Ties products offer various original package types for some part numbers. Packaging quantities are reflected as the suffix “-[LETTER]”
As one example, for Essentra’s WIT-30RRA-16-M, the “M” indicates 1000 pieces per manufacturer standard package.
-Q = 25 pcs
-L = 50 pcs
-C = 100 pcs
-D = 500 pcs
-M = 1000 pcs
The only difference is the factory package quantity. There is no functional difference.